I walked past these girls one day, they were entertaining the children on the street with a small acrobatic act for free. I took some pictures of them, and later went to great lengths to find out their names to ask permission to use the photos. They granted me permission and in return I sent them the pictures and gave them my permission for them to use them.
I have a lot of photos of people, some gave me permission to photograph them, but I didn´t ask if I could post them online. Some don´t know that I have taken pictures of them at all.
I don´t really know how to deal with this, I wouldn´t have photographed them if I didn’t´t find them interesting in some way, but I don´t want to offend anyone.
How do street photographers deal with this issue?